Traditionally, we’ve gone out to our local Karaoke Night to do some singing with a group of friends, but lately, those with a Karaoke itch have been turning to their smartphones.  That’s why The Voice created StarMaker , a karaoke app for android and iphones , says its users have logged 2 billion minutes of singing time since launching in 2010 – around 23,000 hours per day – and has nearly half a million likes on Facebook.  You can choose to submit a recording from the app t